Mechanical Properties and Gravitational Form Factors of a Dressed Quark in Light-Front Hamiltonian QCD

We calculate the gravitational form factors (GFFs), pressure, shear and energy distributions for a quark state dressed with a gluon at one loop in QCD. We call this model as dressed quark model (DQM). We use the light-front Hamiltonian approach. In the light-front gauge, we use a two-component formalism to eliminate the constrained fields. The state may be thought of as a perturbative model for a relativistic spin- \(\frac{1}{2}\) composite system having a gluonic degree of freedom. We compare the results with model calculations for a nucleon.